The decontamination reactions of O,S-diethyl methyl phosphonothiolate, as an agricultural organophosphorous pesticide onto 20 wt% loaded manganese dioxide nanoparticles-silver-Y zeolite as a nanocomposite catalyst in different solvents, were evaluated and monitored by means of gas chromatography–flame ionization detector and gas chromatography–mass spectrometry. Prior to the reaction, the catal...

In this research, by a simple and modified method, nanoporous of Ni(II) ion loaded Y-type zeolite (NNZ) was designed and applied as a novel highly efficient catalyst for the synthesis of quinoxalines, pyrido[2,3-b]pyrazines, and indolo[2,3-b]quinoxalines 3a-s. These heterocycles were obtained through a one-pot condensation reaction of aryl-1,2-diamines with 1,2-dik...

Herein, optimization of zeolite NaA/NaX synthesis conditions in order to obtain the final product with high surface area and pore volume was investigated. An optimal condition 5 days aging time crystallization 9 h co-addition cetyltrimethylammonium bromide (CTAB) heptane. All those provided mixed phase between NaA NaX, addition organic phases improved synthesized zeolite. The role CTAB heptane ...

−− The main objective of this work is to study the feasibility of new materials to be used as support for boron-nickel catalysts. Potential support materials such as: silica gel, alumina, hydrothermal modified Perlites and zeolite 4A, were characterized by BET, TPR and DRX. After the addition of Ni and B, their catalytic activity evaluated with the nitrobenzene hydrogenation model reaction. The...

A novel two-stage pyrolysis-plasma/catalysis process has been developed for hydrogen production from waste biomass. Investigation into; the comparison of biopolymers, cellulose and lignin; effect Mg, Co, Ce, Cu, Fe Ni as promoter metals added to a Ni-Al2O3 catalyst; influence catalyst support material in relation was carried out. The combination plasma catalysis produced highest total gas yield...

In this study we have investigated the possibility of processing waste rubber gloves using pyrolysis. Y-zeolite catalyst was employed to upgrade the pyrolysis products to give higher yields of valuable aromatic compounds such as toluene and xylenes. The composition of the pyrolysis products was determined using gas chromatography with linked mass spectrometry (GC-MS), gas chromatograph equipped...

Microprobe X-ray fluorescence tomography was used to investigate metal poison deposition in individual, intact and industrially deactivated fluid catalytic cracking (FCC) particles at two differing catalytic life-stages. 3 D multi-element imaging, at submicron resolution was achieved by using a large-array Maia fluorescence detector. Our results show that Fe, Ni and Ca have significant concentr...

Carbon dioxide and/or dry methane reforming serves as an effective pathway to mitigate these greenhouse gases. This work evaluates different oxide supports including alumina, Y-zeolite and H-ZSM-5 zeolite for the catalysis of with Nickel (Ni). The composite catalysts were prepared by impregnating Ni (5%) followed calcination. supported exhibited more reducibility basicity compared alumina catal...

Ni-, Cu-, and Fe-loaded acidic and basic Y zeolites were synthesized, and their catalytic properties for oxidative dehydrogenation of ethane (ODHE) to ethylene were characterized. Acidic Ni-loaded Y zeolite exhibits an ethylene productivity of up to 1:08 gC2H4 g 1 cat h 1 with a selectivity of 75%. Acidic Cuand Fe-loaded Y zeolites have an ethylene productivity of up to 0:37 gC2H4 g 1 cat h 1 a...